A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Dispensing of quantum information beyond no-broadcasting theorem-is it possible to broadcast anything genuinely quantum?
Tekijät: Heinosaari Teiko, Jenčová Anna, Plávala Martin
Kustantaja: IOP Publishing Ltd
Julkaisuvuosi: 2023
Journal: Journal of Physics A: Mathematical and Theoretical
Tietokannassa oleva lehden nimi: JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
Lehden akronyymi: J PHYS A-MATH THEOR
Artikkelin numero: 135301
Vuosikerta: 56
Numero: 13
Sivujen määrä: 20
ISSN: 1751-8113
eISSN: 1751-8121
DOI: https://doi.org/10.1088/1751-8121/acbc5b
Rinnakkaistallenteen osoite: https://research.utu.fi/converis/portal/detail/Publication/179380228
No-broadcasting theorem is one of the most fundamental results in quantum information theory; it guarantees that the simplest attacks on any quantum protocol, based on eavesdropping and copying of quantum information, are impossible. Due to the fundamental importance of the no-broadcasting theorem, it is essential to understand the exact boundaries of this limitation. We generalize the standard definition of broadcasting by restricting the set of states which we want to broadcast and restricting the sets of measurements which we use to test the broadcasting. We show that in some of the investigated cases broadcasting is equivalent to commutativity, while in other cases commutativity is not necessary.
Ladattava julkaisu This is an electronic reprint of the original article. |